Connect the negative leg (cathode) of the second LED to the ground. You can copy this code into the Arduino IDE and upload it to your Arduino board. This will make the LEDs connected to pin 3 and pin ...

Usage Connect your Arduino board to your computer. Select the correct connected Arduino port. Upload the code to your Arduino board. If you're unsure how to upload code to your Arduino board, please ...

Circuit Diagram and Working Explanation Here we are going to write a program to blink an LED for every 500ms. In arduino uno, a LED will be already designed at the pin13, but we are not going to use ...